61517227441 has 2 divisors, whose sum is σ = 61517227442. Its totient is φ = 61517227440.

The previous prime is 61517227411. The next prime is 61517227487. The reversal of 61517227441 is 14472271516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59570653041 + 1946574400 = 244071^2 + 44120^2 .

It is a cyclic number.

It is not a de Polignac number, because 61517227441 - 2⁷ = 61517227313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61517227394 and 61517227403.

It is not a weakly prime, because it can be changed into another prime (61517227411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30758613720 + 30758613721.

It is an arithmetic number, because the mean of its divisors is an integer number (30758613721).

Almost surely, 2^61517227441 is an apocalyptic number.

It is an amenable number.

61517227441 is a deficient number, since it is larger than the sum of its proper divisors (1).

61517227441 is an equidigital number, since it uses as much as digits as its factorization.

61517227441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 40.

Adding to 61517227441 its reverse (14472271516), we get a palindrome (75989498957).

The spelling of 61517227441 in words is "sixty-one billion, five hundred seventeen million, two hundred twenty-seven thousand, four hundred forty-one".